*/
/*
- * PWO: this is not exactly what Steve Baker has done for PLIB, as I had to convert
- * it from C++ to C. And I've also reformatted it a bit (that's my little
- * personal deviation :]) I don't really know if it is still portable...
+ * PWO: This is not exactly what Steve Baker has done for PLIB, as I had to
+ * convert it from C++ to C. And I've also reformatted it a bit (that's
+ * my little personal deviation :]) I don't really know if it is still
+ * portable...
* Steve: could you please add some comments to the code? :)
*
- * FreeBSD port - courtesy of Stephen Montgomery-Smith <stephen@math.missouri.edu>
+ * FreeBSD port by Stephen Montgomery-Smith <stephen@math.missouri.edu>
*/
#if defined(__FreeBSD__) || defined(__NetBSD__)
# ifndef JS_DATA_TYPE
/*
- * Not Windoze and no joystick driver...
+ * Not Windoze and no (known) joystick driver...
*
* Well - we'll put these values in and that should
* allow the code to at least compile. The JS open
*/
switch( joy->num_axes )
{
- case 6: axes[5] = (float) joy->js.dwVpos;
- case 5: axes[4] = (float) joy->js.dwUpos;
- case 4: axes[3] = (float) joy->js.dwRpos;
- case 3: axes[2] = (float) joy->js.dwZpos;
- case 2: axes[1] = (float) joy->js.dwYpos;
- case 1: axes[0] = (float) joy->js.dwXpos;
+ case 6: axes[5] = (float) joy->js.dwVpos;
+ case 5: axes[4] = (float) joy->js.dwUpos;
+ case 4: axes[3] = (float) joy->js.dwRpos;
+ case 3: axes[2] = (float) joy->js.dwZpos;
+ case 2: axes[1] = (float) joy->js.dwYpos;
+ case 1: axes[0] = (float) joy->js.dwXpos;
}
}
#else
if( status != sizeof(struct js_event) )
{
- if( errno == EAGAIN )
- {
- /*
- * Use the old values
- */
- if( buttons ) *buttons = joy->tmp_buttons;
- if( axes ) memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes );
+ if( errno == EAGAIN )
+ {
+ /*
+ * Use the old values
+ */
+ if( buttons )
+ *buttons = joy->tmp_buttons;
+ if( axes )
+ memcpy( axes, joy->tmp_axes,
+ sizeof(float) * joy->num_axes );
return;
- }
+ }
- fgWarning( "%s", joy->fname );
- joy->error = TRUE;
- return;
+ fgWarning( "%s", joy->fname );
+ joy->error = TRUE;
+ return;
}
switch( joy->js.type & ~JS_EVENT_INIT )
{
- case JS_EVENT_BUTTON:
- if ( joy->js.value == 0 ) /* clear the flag */
- joy->tmp_buttons &= ~(1 << joy->js.number);
+ case JS_EVENT_BUTTON:
+ if ( joy->js.value == 0 ) /* clear the flag */
+ joy->tmp_buttons &= ~(1 << joy->js.number);
else
- joy->tmp_buttons |= (1 << joy->js.number);
- break;
-
- case JS_EVENT_AXIS:
- joy->tmp_axes[ joy->js.number ] = (float) joy->js.value;
-
- if( axes )
- memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes );
- break;
+ joy->tmp_buttons |= (1 << joy->js.number);
+ break;
+
+ case JS_EVENT_AXIS:
+ joy->tmp_axes[ joy->js.number ] = (float) joy->js.value;
+
+ if( axes )
+ memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes );
+ break;
}
if( buttons )
- *buttons = joy->tmp_buttons;
+ *buttons = joy->tmp_buttons;
}
# else
{
if( value < joy->center[ axis ] )
{
- float xx = (value - joy->center[ axis ]) / (joy->center[ axis ] - joy->min[ axis ]);
+ float xx = (value - joy->center[ axis ]) / (joy->center[ axis ] -
+ joy->min[ axis ]);
if( xx < -joy->saturate[ axis ] )
- return( -1.0f );
+ return( -1.0f );
if( xx > -joy->dead_band [ axis ] )
- return( 0.0f );
+ return( 0.0f );
- xx = (xx + joy->dead_band[ axis ]) / (joy->saturate[ axis ] - joy->dead_band[ axis ]);
+ xx = (xx + joy->dead_band[ axis ]) / (joy->saturate[ axis ] -
+ joy->dead_band[ axis ]);
return( ( xx < -1.0f ) ? -1.0f : xx );
}
else
{
- float xx = (value - joy->center [ axis ]) / (joy->max[ axis ] - joy->center[ axis ]);
+ float xx = (value - joy->center [ axis ]) / (joy->max[ axis ] -
+ joy->center[ axis ]);
if( xx > joy->saturate[ axis ] )
return 1.0f ;
if( xx < joy->dead_band[ axis ] )
- return 0.0f ;
+ return 0.0f ;
- xx = (xx - joy->dead_band[ axis ]) / (joy->saturate[ axis ] - joy->dead_band[ axis ]);
+ xx = (xx - joy->dead_band[ axis ]) / (joy->saturate[ axis ] -
+ joy->dead_band[ axis ]);
return( ( xx > 1.0f ) ? 1.0f : xx );
}
memset( &jsCaps, 0, sizeof(jsCaps) );
- joy->error = (joyGetDevCaps( joy->js_id, &jsCaps, sizeof(jsCaps) ) != JOYERR_NOERROR);
- joy->num_axes = (jsCaps.wNumAxes < _JS_MAX_AXES ) ? jsCaps.wNumAxes : _JS_MAX_AXES;
+ joy->error =
+ (joyGetDevCaps( joy->js_id, &jsCaps, sizeof(jsCaps) ) !=
+ JOYERR_NOERROR);
+ joy->num_axes =
+ (jsCaps.wNumAxes < _JS_MAX_AXES ) ? jsCaps.wNumAxes : _JS_MAX_AXES;
/*
* WARNING - Fall through case clauses!!
*/
switch( joy->num_axes )
{
- case 6 : joy->min[ 5 ] = (float) jsCaps.wVmin; joy->max[ 5 ] = (float) jsCaps.wVmax;
- case 5 : joy->min[ 4 ] = (float) jsCaps.wUmin; joy->max[ 4 ] = (float) jsCaps.wUmax;
- case 4 : joy->min[ 3 ] = (float) jsCaps.wRmin; joy->max[ 3 ] = (float) jsCaps.wRmax;
- case 3 : joy->min[ 2 ] = (float) jsCaps.wZmin; joy->max[ 2 ] = (float) jsCaps.wZmax;
- case 2 : joy->min[ 1 ] = (float) jsCaps.wYmin; joy->max[ 1 ] = (float) jsCaps.wYmax;
- case 1 : joy->min[ 0 ] = (float) jsCaps.wXmin; joy->max[ 0 ] = (float) jsCaps.wXmax; break;
+ case 6:
+ joy->min[ 5 ] = (float) jsCaps.wVmin;
+ joy->max[ 5 ] = (float) jsCaps.wVmax;
+ case 5:
+ joy->min[ 4 ] = (float) jsCaps.wUmin;
+ joy->max[ 4 ] = (float) jsCaps.wUmax;
+ case 4:
+ joy->min[ 3 ] = (float) jsCaps.wRmin;
+ joy->max[ 3 ] = (float) jsCaps.wRmax;
+ case 3:
+ joy->min[ 2 ] = (float) jsCaps.wZmin;
+ joy->max[ 2 ] = (float) jsCaps.wZmax;
+ case 2:
+ joy->min[ 1 ] = (float) jsCaps.wYmin;
+ joy->max[ 1 ] = (float) jsCaps.wYmax;
+ case 1:
+ joy->min[ 0 ] = (float) jsCaps.wXmin;
+ joy->max[ 0 ] = (float) jsCaps.wXmax;
+ break;
/*
* I guess we have no axes at all
*/
- default: joy->error = TRUE; break;
+ default:
+ joy->error = TRUE;
+ break;
}
/*
fghJoystickRawRead(joy, buttons, axes );
joy->error = axes[ 0 ] < -1000000000.0f;
if( joy->error )
- return ;
+ return ;
sprintf( joyfname, "%s/.joy%drc", getenv( "HOME" ), joy->id );
joy->error = (noargs != 7) || (in_no_axes != _JS_MAX_AXES);
fclose( joyfile );
if( joy->error )
- return;
+ return;
for( i=0 ; i<_JS_MAX_AXES ; i++ )
{
*/
void fgJoystickInit( int ident )
{
- /*
- * Make sure we don't get reinitialized
- */
if( fgJoystick != NULL )
fgError( "illegal attemp to initialize joystick device" );
- /*
- * Have the global joystick structure created
- */
fgJoystick = (SFG_Joystick *)calloc( sizeof(SFG_Joystick), 1 );
#ifdef WIN32
sprintf( fgJoystick->fname, "/dev/js%d", ident );
# endif
- /*
- * Let's try opening the joystick device now:
- */
fghJoystickOpen( fgJoystick );
#endif
}
float axes[ _JS_MAX_AXES ];
int buttons;
- /*
- * Make sure the joystick device is initialized, the window seems valid
- * and that there is a joystick callback hooked to it:
- */
freeglut_return_if_fail( fgJoystick != NULL && window != NULL );
freeglut_return_if_fail( window->Callbacks.Joystick != NULL );
- /*
- * Poll the joystick now:
- */
fghJoystickRead( fgJoystick, &buttons, axes );
- /*
- * Execute the freeglut joystick callback now
- */
fgSetWindow (window);
window->Callbacks.Joystick(
buttons,
#endif
/*** END OF FILE ***/
-
-
-
-
projects / freeglut / blobdiff